CBSE Class 12 Mathematics 2026 Main Paper 65/1/2 · Q151 Marksdeterminants
CBSE Class 12 Mathematics 2026 Main Paper 65/1/2 · Question 15 (Determinants)
If Δ₁ = | 1 0 0; 0 2 0; 0 0 3 | and Δ₂ = | 0 2 0; 1 0 0; 0 0 6 |, then
✅ Step-by-Step Solution
Final Answer: (B) Δ₂ = −2Δ₁
- Δ₁ = 1×2×3 = 6.
- Δ₂ = expanding along the first row = −2(1×6 − 0) = −12.
- So Δ₂ = −2Δ₁.
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